In 1979, Hayden Fry helped to create the Tiger Hawk, the logo seen on Iowa's football helmets. Since both teams shared the colors of black and yellow gold, Fry sought and gained permission from the Pittsburgh Steelers, the dominant National Football League (NFL) team of the 1970s, to overhaul Iowa’s uniforms in the Steelers’ image. Fry's idea was that if the team were going to act like winners, they first needed to dress like winners. Fry had originally asked Steelers defensive tackle "Mean" Joe Greene for a replica helmet and home jersey; Greene was able to send Fry to one of the team owners, and three days later, the owners sent Fry reproduction copies of the home and away uniform of Steelers quarterback Terry Bradshaw, making Iowa one of only a few schools to use the uniform scheme of an NFL team; others include the Blue Devils of Duke University whose football uniforms resemble those of the Indianapolis Colts. Although the uniforms appear substantially the same, there are subtle differences, mainly in the font of the numerals, the scheme of the white away jerseys, and the width of the jersey stripe.